Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultra-high performance concrete and preparation method thereof
The invention discloses ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The ultra-high performance concrete comprises the following components in percentage by weight: 30%-50% of a cementing material, 12%-25% of common river sand, 20%-30% of recycled coarse aggregate, 0.5%-1.0% of a water reducing agent, 1.5%-2.5% of steel fibers and the balance of water. The recycled aggregate is used for partially or completely replacing high-strength natural aggregate, and the common river sand is used for replacing ground quartz sand, so that the ultra-high performance concrete with the performance meeting the requirements can be prepared, and the cost is reduced.
本发明公开了一种超高性能混凝土及其制备方法，属于建筑材料技术领域。超高性能混凝土，包括如下重量百分比的组分：胶凝材料30%~50%、普通河沙占12%~25%、再生粗骨料20%~30%、减水剂0.5%~1.0%、钢纤维占比为1.5%~2.5%，其余为水。本发明利用再生骨料部分或全部代替高强度天然骨料、利用普通河沙代替磨细石英砂，不仅能够制备出性能符合要求的超高性能混凝土，而且降低了成本。
Ultra-high performance concrete and preparation method thereof
The invention discloses ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The ultra-high performance concrete comprises the following components in percentage by weight: 30%-50% of a cementing material, 12%-25% of common river sand, 20%-30% of recycled coarse aggregate, 0.5%-1.0% of a water reducing agent, 1.5%-2.5% of steel fibers and the balance of water. The recycled aggregate is used for partially or completely replacing high-strength natural aggregate, and the common river sand is used for replacing ground quartz sand, so that the ultra-high performance concrete with the performance meeting the requirements can be prepared, and the cost is reduced.
本发明公开了一种超高性能混凝土及其制备方法，属于建筑材料技术领域。超高性能混凝土，包括如下重量百分比的组分：胶凝材料30%~50%、普通河沙占12%~25%、再生粗骨料20%~30%、减水剂0.5%~1.0%、钢纤维占比为1.5%~2.5%，其余为水。本发明利用再生骨料部分或全部代替高强度天然骨料、利用普通河沙代替磨细石英砂，不仅能够制备出性能符合要求的超高性能混凝土，而且降低了成本。
Ultra-high performance concrete and preparation method thereof
一种超高性能混凝土及其制备方法
WANG YAO (Autor:in) / ZHANG JING (Autor:in)
12.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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